Enable JIT for WinCE.

Demos work, 120 unit-tests pass, some failures unrelated to JIT.

Change-Id: I641d31cc08dc7961fa46d7b95666178699317f61
Reviewed-by: Andreas Holzammer <andreas.holzammer@kdab.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>